Science Fair Marking Term 2 2011 ☒ Not achieved ☑Achieved☑☑Advanced
Scientific Process and Background: ☑☑Clear aim/hypothesis carried through ☑☑Method, accurate experimentation ☑☑Accurate experimentation, controls, variables, repetitions ☑☑Results clear, accurate, include appropriate data ☑☑Conclusions are in line with aim/hypothesis ☑☑Results are interpreted and discussed (conclusion)
Technical Skill: ☑☑Design of the experiment ☑Use of apparatus and materials
Originality: ☑☑Imaginative/creative ideas ☑New/Unusual application in science
Presentation of Display:☑☑Colour/form/clarity/graphics ☑☑Innovative appeal
Log Book: ☑☑Authentic ongoing record with raw data included ☑Has supporting documentation, bibliography, acknowledgements
Teacher Comment: Great name for your science fair Sam. You have clearly thought about this before you started and have chosen a meaningful topic. You have included an explanation for why kiwifruit ripens with other fruit. This is fantastic to see. Your use of graphs is effective and I like the way you have included photos on your display. Well done Sam.
Student Comment:
Rapid Ripening
Introduction:
I am doing this science project because I want to find out the best way to ripen kiwifruit. We live on a kiwi-fruit orchard and like to have edible kiwifruit available as much as possible.
Aim:
My aim is to find the fastest method to ripen kiwifruit to an edible standard.
Hypothesis:
I think that the kiwifruit with the banana in the bag will be the most flavorsome and will ripen the fastest. I think this because, as bananas ripen they release ethylene gas which help kiwifruit ripen.
This hypothesis is supported by an old sea faring legend which tells the story of when sailing ships use to stop at islands and re-stock with food including lots of fruit. The bananas would always go off first and triggered all the other fruit to go off as well.
Method:
Pick 40 hard, unripe kiwifruit.
Fill eight clip-top bags with the following fruit combinations
Results:
Bag #
Fruit in bag
Storage
Bag 1
5 kiwifruit
room temperature
Bag 2
5 kiwifruit + 1 apple
room temperature
Bag 3
5 kiwifruit + 1 banana
room temperature
Bag 4
5 kiwifruit + 1 nashi
room temperature
Bag 5
5 kiwifruit
hot water cupboard
Bag 6
5 kiwifruit + 1 apple
hot water cupboard
Bag 7
5 kiwifruit + 1 banana
hot water cupboard
Bag 8
5 kiwifruit + 1 nashi
hot water cupboard
Place bags 1- 4 in a room where they will not be touched. Place bags 5-8 in one shelf in the hot-water cupboard.
Conduct a brix test on a randomly selected fruit on the first day then every 2 days starting on the 4th day. See results on the table below.
When the kiwifruit feel soft enough to eat get your family or friends to taste test the fruit and then record the number of soft fruit in each bag. See graph below.
Please Note:
We will be using a brix tester. Brix testers measure the sugar levels and the ripeness of kiwifruit.
We will not be tasting the kiwifruit until they are soft enough to eat and we will end on the
10th day.
Day 1 (measuredusingbrix)
Day 4 (measuredusingbrix)
Day 6 (measuredusingbrix)
Day 8 (measuredusingbrix)
Day 10 (measuredusingbrix)
Bag 1
5 kiwifruit at room temperature with nothing.
8.3
too hard to eat
8.5
too hard to eat
8.7
too hard to eat
9.0
0/5 All to hard to eat.
10.5
0/4 All to hard to eat.
Bag 2
5 kiwifruit and one apple at room temperature
8.3
too hard to eat
10.2
did not taste.
14.3
too hard to eat
16.1
5/5 ready to eat good tasting.
17.4
4/4 ready to eat good tasting.
Bag 3
5 kiwifruit and one banana at room temperature
8.7
too hard to eat
9.5
too hard to eat
10.2
too hard to eat
11.5
1/5 ready to eat good tasting.
14.0
3/4 ready to eat
good tasting.
Bag 4
5 kiwifruit and one nashi at room temperature
7.2
too hard to eat
7.7
too hard to eat
8.5
too hard to eat
9.2
No soft ones.
10.1
0/4 no soft ones
Bag 5
5 kiwifruit in the hot water cupboard with nothing in it.
8.0
too hard to eat
9.5
too hard to eat
11.7
too hard to eat
13.4
4/5 ready to eat
good tasting.
14.2
3/4 ready to eat good tasting
Bag 6
5 kiwifruit and one apple in hot water cupboard.
7.3
too hard to eat
9.7
did not taste.
13.5
too hard to eat
15.0
5/5 ready to eat prefect tasting.
16.9
4/4 ready to eat prefect tasting.
Bag 7
5 kiwifruit and one banana in the hot water cupboard.
7.7
too hard to eat
9.4
too hard to eat
12.7
too hard to eat
15.1
4/5 ready to eat prefect tasting.
16.5
3/4 ready to eat good tasting
Bag 8
5 kiwifruit and one nashi in the hot water cupboard.
8.5
too hard to eat
9.6
too hard to eat
11.4
too hard to eat
13.5
4/5 ready
to eat prefect tasting.
14.1
3/4 ready to eat good tasting.
Graphs:
Results Day 8
Hot water cupboard:
The bag with the apple in it produced 5/5 ripe kiwifruit.
The bags with the nashi, the apple and nothing in it all produced the same results : 4/5 ripe kiwifruit.
Room temperature:
The bag with the apple in it produced 5/5 ripe kiwifruit.
The bag with the banana produced 3/5 ripe kiwifruit.
The bag with the nashi and the bag with nothing in it both produced 0/5 ripe kiwifruit.
Results Day 10 Hot water cupboard:
The bag with the apple in it produced 4/4 ripe kiwifruit.
The bags with the banana, nashi and the bag with nothing in it all produced the same results of ripe fruit : 3/4 ripe kiwifruit.
Room temperature:
The bag with the apple in it produced 4/4 ripe kiwifruit.
The bag with the banana produced 3/4 ripe kiwifruit.
The bag with the nashi and the bag with nothing in it both produced 0/4 ripe kiwifruit
Conclusion:
My hypothesis was wrong because the bag with the banana in the hot water cupboard and the bag with the banana at room temperature didn’t have the most ripe kiwifruit, they weren’t the most flavorsome and they didn’t have the highest result in the brix test. The bag containing the apple produced the most ripe kiwifruit in the hot water cupboard and at room temperature however the others weren't far behind.
The bag with the nashi and the bag with nothing in it was the worst at ripening kiwi fruit because at room temperature no fruit ripened and when in the hot water cupboard only three ripened. But again the bag with the banana in it was also following close because it had 3 ripe kiwifruit when the apple had 5.
I have learnt that as the fruit in the bags ripened (apple, nashi,banana) they released ethylene gas at different rates which in turn helped to ripen the kiwifruit.
My project has shown that the bag with the apples in a bag were the best at ripening kiwifruit, these bags produced the most flavorsome and had the most ripe kiwifruit. The bag with the apple in them was the best at ripening kiwifruit because it has the most ethylene gas and the clip top bag helps because it traps the ethylene gas in the bag that makes the kiwifruit ripen faster and taste better. The kiwifruit also ripens with sugar and the apple releases a sent of sugar which help the kiwifruit ripen. I do not think that I would have to do it again because I have got a clear result from my test.
Method: we added the powders to water vinegar iodine litmus paper then found out the results.
Hypothesis:
Cornflower= A
Salt= B
Cream of tartar= E
Backing soda= D
Icing sugar= C
Reflection: we got half of our hypothesis right these are the ones we guessed right cornflower= A salt= B cream of tartar= E icing sugar= C Test Your Dominant SideWe first tested Which eye do you use to wink with, witch hand you throw a ball with, Witch leg you jump off, Witch eye you look throw a tube with, witch hand you right with, witch foot you kick a ball with and witch hand you pick a cup up with and with all of these I used my right hand. Spinning top experiment.
We cut out a perfect circle on some card with the compass we then layered it with some paper to make it even thicker. Then we ruled each 3rd and colored them in with green, blue, and orange we then made a hole in the middle big enough for our pencils to fit through and not fall off. Last of all we span it like a spinning top and found the colour that it blended into, and the colour was grey.
Monday 2 May 2011
Gravity free water: We filled the white 10 by 8cm coffee cup up to the top with water then sealed the mouth of the cup with a small folded piece of card, we then flipped the cup over and then let go of the folded card. The gravity free water held the piece of card for an estimated time of 1 minute and 13 seconds. We tried this experiment a few times before we could get the time of 1 minute and 13 seconds. Science Fair Due Friday 3 June Week 5
This table is different from the one outlined in the above Science Fair booklet. There will beno extensions given, Class time will be given for writing up aim, hypothesis, instructions, explanations, diagrams, tables etc and putting displays together. Parents please support your child with carrying out their experiments as this will be the main element of their homework during Science Fair.
Order of Events
Timeline
1
Choose a topic including is it a Science or Technology display
Week 1
2
Completed Aim and Hypothesis (science) or Question (technology)
Week 2
3
Planned how you are going to complete experiments (science) or investigation of needs assessment and prototype design (technology) What do you need? Who do you use?How many? What help do you require? How will you measure and collect data? How many trials/experiments/prototypes willyou complete? How will you present data? Numbers are good! Do you need to complete a Animal Ethics form?
Week 2
4
Start experiments (science) or needs assessment (technology)
Week 3
5
Needs assessment (technology) completed
Week 3/4
6
Experiments (science) and prototype testing (technology) completed
Week 3/4
7
First draft completed
Week 4/5
8
All written work, diagrams, tables, graphs, photos, and other graphics completed and checked by the class teacherBEFORE it is attached to the display
☒ Not achieved ☑Achieved☑☑Advanced
Scientific Process and Background:
☑☑Clear aim/hypothesis carried through
☑☑Method, accurate experimentation
☑☑Accurate experimentation, controls, variables, repetitions
☑☑Results clear, accurate, include appropriate data
☑☑Conclusions are in line with aim/hypothesis
☑☑Results are interpreted and discussed (conclusion)
Technical Skill:
☑☑Design of the experiment
☑Use of apparatus and materials
Originality:
☑☑Imaginative/creative ideas
☑New/Unusual application in science
Presentation of Display: ☑☑Colour/form/clarity/graphics
☑☑Innovative appeal
Log Book:
☑☑Authentic ongoing record with raw data included
☑Has supporting documentation, bibliography, acknowledgements
Teacher Comment: Great name for your science fair Sam. You have clearly thought about this before you started and have chosen a meaningful topic. You have included an explanation for why kiwifruit ripens with other fruit. This is fantastic to see. Your use of graphs is effective and I like the way you have included photos on your display. Well done Sam.
Student Comment:
Rapid Ripening
Introduction:
I am doing this science project because I want to find out the best way to ripen kiwifruit. We live on a kiwi-fruit orchard and like to have edible kiwifruit available as much as possible.
Aim:
My aim is to find the fastest method to ripen kiwifruit to an edible standard.
Materials:
1. 1x Brix tester.
40x Kiwifruit - Hayward (green) variety
Hypothesis:
I think that the kiwifruit with the banana in the bag will be the most flavorsome and will ripen the fastest. I think this because, as bananas ripen they release ethylene gas which help kiwifruit ripen.
This hypothesis is supported by an old sea faring legend which tells the story of when sailing ships use to stop at islands and re-stock with food including lots of fruit. The bananas would always go off first and triggered all the other fruit to go off as well.
Method:
Results:
Please Note:
We will be using a brix tester. Brix testers measure the sugar levels and the ripeness of kiwifruit.
We will not be tasting the kiwifruit until they are soft enough to eat and we will end on the
10th day.
(measured using brix)
(measured using brix)
(measured using brix)
(measured using brix)
(measured using brix)
5 kiwifruit at room temperature with nothing.
too hard to eat
too hard to eat
too hard to eat
0/5 All to hard to eat.
0/4 All to hard to eat.
5 kiwifruit and one apple at room temperature
too hard to eat
did not taste.
too hard to eat
5/5 ready to eat good tasting.
4/4 ready to eat good tasting.
5 kiwifruit and one banana at room temperature
too hard to eat
too hard to eat
too hard to eat
1/5 ready to eat good tasting.
3/4 ready to eat
good tasting.
5 kiwifruit and one nashi at room temperature
too hard to eat
too hard to eat
too hard to eat
No soft ones.
0/4 no soft ones
5 kiwifruit in the hot water cupboard with nothing in it.
too hard to eat
too hard to eat
too hard to eat
4/5 ready to eat
good tasting.
3/4 ready to eat good tasting
5 kiwifruit and one apple in hot water cupboard.
too hard to eat
did not taste.
too hard to eat
5/5 ready to eat prefect tasting.
4/4 ready to eat prefect tasting.
5 kiwifruit and one banana in the hot water cupboard.
too hard to eat
too hard to eat
too hard to eat
4/5 ready to eat prefect tasting.
3/4 ready to eat good tasting
5 kiwifruit and one nashi in the hot water cupboard.
too hard to eat
too hard to eat
too hard to eat
4/5 ready
to eat prefect tasting.
3/4 ready to eat good tasting.
Graphs:
Results Day 8
Hot water cupboard:
The bag with the apple in it produced 5/5 ripe kiwifruit.
The bags with the nashi, the apple and nothing in it all produced the same results : 4/5 ripe kiwifruit.
Room temperature:
The bag with the apple in it produced 5/5 ripe kiwifruit.
The bag with the banana produced 3/5 ripe kiwifruit.
The bag with the nashi and the bag with nothing in it both produced 0/5 ripe kiwifruit.
Results Day 10
Hot water cupboard:
The bag with the apple in it produced 4/4 ripe kiwifruit.
The bags with the banana, nashi and the bag with nothing in it all produced the same results of ripe fruit : 3/4 ripe kiwifruit.
Room temperature:
The bag with the apple in it produced 4/4 ripe kiwifruit.
The bag with the banana produced 3/4 ripe kiwifruit.
The bag with the nashi and the bag with nothing in it both produced 0/4 ripe kiwifruit
Conclusion:
My hypothesis was wrong because the bag with the banana in the hot water cupboard and the bag with the banana at room temperature didn’t have the most ripe kiwifruit, they weren’t the most flavorsome and they didn’t have the highest result in the brix test. The bag containing the apple produced the most ripe kiwifruit in the hot water cupboard and at room temperature however the others weren't far behind.
The bag with the nashi and the bag with nothing in it was the worst at ripening kiwi fruit because at room temperature no fruit ripened and when in the hot water cupboard only three ripened. But again the bag with the banana in it was also following close because it had 3 ripe kiwifruit when the apple had 5.
I have learnt that as the fruit in the bags ripened (apple, nashi,banana) they released ethylene gas at different rates which in turn helped to ripen the kiwifruit.
My project has shown that the bag with the apples in a bag were the best at ripening kiwifruit, these bags produced the most flavorsome and had the most ripe kiwifruit. The bag with the apple in them was the best at ripening kiwifruit because it has the most ethylene gas and the clip top bag helps because it traps the ethylene gas in the bag that makes the kiwifruit ripen faster and taste better. The kiwifruit also ripens with sugar and the apple releases a sent of sugar which help the kiwifruit ripen. I do not think that I would have to do it again because I have got a clear result from my test.
Method: we added the powders to water vinegar iodine litmus paper then found out the results.
Hypothesis:
Cornflower= A
Salt= B
Cream of tartar= E
Backing soda= D
Icing sugar= C
Reflection: we got half of our hypothesis right these are the ones we guessed right cornflower= A salt= B cream of tartar= E icing sugar= C
Test Your Dominant Side We first tested Which eye do you use to wink with, witch hand you throw a ball with, Witch leg you jump off, Witch eye you look throw a tube with, witch hand you right with, witch foot you kick a ball with and witch hand you pick a cup up with and with all of these I used my right hand.
Spinning top experiment.
We cut out a perfect circle on some card with the compass we then layered it with some paper to make it even thicker. Then we ruled each 3rd and colored them in with green, blue, and orange we then made a hole in the middle big enough for our pencils to fit through and not fall off. Last of all we span it like a spinning top and found the colour that it blended into, and the colour was grey.
Monday 2 May 2011
Gravity free water:
We filled the white 10 by 8cm coffee cup up to the top with water then sealed the mouth of the cup with a small folded piece of card, we then flipped the cup over and then let go of the folded card. The gravity free water held the piece of card for an estimated time of 1 minute and 13 seconds. We tried this experiment a few times before we could get the time of 1 minute and 13 seconds.
Science Fair Due Friday 3 June Week 5
Science Fair
Please have a close read of the following site that Mr Marsh has put together.
http://ourspace.tauranga-int.school.nz/course/view.php?id=64
Useful Science sites for ideas:
http://www.sciencebuddies.org/
http://www.all-science-fair-projects.com/
Cool Science Sites
http://www.sciencelearn.org.nz/
Please Note:
This table is different from the one outlined in the above Science Fair booklet. There will beno extensions given, Class time will be given for writing up aim, hypothesis, instructions, explanations, diagrams, tables etc and putting displays together. Parents please support your child with carrying out their experiments as this will be the main element of their homework during Science Fair.
What do you need?
Who do you use?How many?
What help do you require?
How will you measure and collect data?
How many trials/experiments/prototypes will you complete?
How will you present data? Numbers are good!
Do you need to complete a Animal Ethics form?